Question

Which of the following does not cause a large number of density dependent deaths in a population?

• A. Winter storms disease carrying insects
• B. Disease carrying insects
• C. Predators
• D. Limited resources
• E. Small forest fire

Answer 1

Answer: (A)

Winter storms disease carrying insects

Density-dependent factors are the one that affects the birth and death rates of population in a density-dependent manner. These are mostly the biotic factors such as predation, competition, parasites etc. The low prey density affects the mortality of predator is a density dependent factor. Among the given options, winter storms affect the population in density independent manner as it can affect the individual organism irrespective of its population density e.g., winter storm causing the death of a deer regardless of deer population density.

So, the correct answer is option A.